Medicine for Allergy Hives

Hives are raised, itchy welts caused by the release of chemical signals in the skin. An antihistamine can reduce the itch and formation of new welts; some products can cause drowsiness, so follow the label and ask a pharmacist about driving or interactions. Hives may occur with other symptoms such as [Itchy Skin](/symptoms/itchy-skin/) or a [Skin Rash](/symptoms/skin-rash/). Swelling deeper in the skin is called [Angioedema](/conditions/angioedema/).

Take only the recommended product and dose for your age and health conditions. Avoid a suspected trigger when one is clear, but do not remove major foods from your diet without professional guidance. Keep the skin cool, avoid hot showers and tight clothing, and photograph fleeting welts for an appointment. A clinician may recommend [Antihistamine Treatment](/treatments/medical-dermatology/oral-antihistamine-therapy/) or, for selected severe episodes, [Oral Corticosteroid Treatment](/treatments/medical-dermatology/oral-corticosteroid-therapy/).

Call emergency services immediately for swelling of the lips, tongue, mouth, or throat; trouble breathing or swallowing; faintness; or sudden widespread symptoms. Seek medical advice for hives that keep returning, last beyond a short episode, or come with fever, bruising, painful skin, or [Skin Swelling](/symptoms/skin-swelling/).

Ask which antihistamine and schedule fit your situation, whether another medicine may be causing the hives, and how to recognise angioedema or a severe allergic reaction. Ask what to do if symptoms return after treatment.